An acquaintance of mine who is a physician told this story about her then-four-year-old daughter.©OFFICEJOKES.NET

On the way to preschool, the doctor had left her stethoscope on the car seat, and her little girl picked it up and began playing with it.©OFFICEJOKES.NET

Be still, my heart, thought my friend, gee, my daughter wants to follow in my footsteps and be a doctor! Then the child spoke into the instrument: "Welcome to McDonald's.©OFFICEJOKES.NET

May I take your order?"